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ThinkMind // ALLSENSORS 2020, The Fifth International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article allsensors_2020_2_140_70084


A Novel Low-Concentration Isopropanol Gas Sensor Based on Fe-doped ZnO Nanoneedles

Authors:
Yifan Luo
Ahmadou Ly
Marc Debliquy
Driss Lahem
Chao Zhang

Keywords: ZnO; Fe doping; gas sensor; isopropanol; lung cancer.

Abstract:
This work reports a highly sensitive Fe doped ZnO nanoneedles based gas sensor for detection at low concentrations. Pure and Fe doped ZnO were synthesized via a hydrothermal method and spray-coated onto an alumina substrates. The sensing properties were investigated under different temperatures and concentrations. Fe doping significantly increased the sensing performance of ZnO nanoneedles. The 5 at% Fe doped sensor showed the best response to isopropanol and the optimal working temperature is 275oC. The sensor showed a high response to 250 ppb isopropanol, together with high stability under different humidity levels.

Pages: 67 to 68

Copyright: Copyright (c) IARIA, 2020

Publication date: March 22, 2020

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-61208-766-5

Location: Valencia, Spain

Dates: from November 21, 2020 to November 21, 2020

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